Rolling-mill.



V. E. EDWARDS.

ROLLING MILL.

APPLICATION FILED AUG.2. I915.

Patented Jan. 14,1919.

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V. E. EDWARDS.

' ROLLING MILL.

APPLICATION HLED AUG.2. 1915..

Patented Jan. 14, 1919.

v. E. EDWARDS. ROLLING MILL.

APPLICATION FILED AUG.2. I915. v

Patented Jan. 14, 1919.

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I APPLICATION FILED AUG.2. I915. Paten ted Jan. 14:

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UNITED STATES PATENT OFFICE.

VICTOR E. EDWARDS, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO MORGAN CONSTRUCTION COMPANY, OF WORCESTER, MASSACHUSETTS, A CORPORA- TION OF MASSACHUSETTS.

ROLLING-MILL.

' To all whom it may concern:

Be it known that I, VICTOR E. EDWARDS, a citizen of the United States, residing at \Vorcester, in the county of Worcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in Rolling-Mills, of which the following, together with the accompanying drawings, is a specification.

The present invention relates to a rolling mill, and has particular reference to the provision of stands-of rolls designed forthe continuous production of a bar or rod of accurate circular-cross-section, known as a round. The invention resides in a construction embodying two stands of reducing rolls, and in the disposition of said rolls in a single housing, for the purpose of efliciently carrying out the method of rolling rounds fully set forth and described in my copending companion application, Serial No. 873,463, filed November 23, 1914.

The aforesaid copending application covers a method which contemplates as one step the reduction of an oversize round to the cross section desired, by the successive reduction and changes of shape afforded by two stands of rolls arranged in substantial juxtaposition, the axes of the rolls of one stand being disposed at right angles to the axes of the rolls of the other stand. In the following description, the construction of a roll housing, providing two stands of rolls arranged as above described for the efficient performance of the aforesaid method of rolling rounds, will be fully set forth, reference being had to the accompanying drawings, in which' Figure 1 is a view, in side elevation, of my improved mechanism, showing the roll housing embodying my invention in rear end elevation.

Fig. 2 is aside elevation, partially in vertical section, of the roll housing shown in Fig. 1.

Fig. 3 is a horizontal sectional view of the roll housing, on line 33, Fig. 2.

Fig. 4 is a section similar to Fig. 3 on line 4 4., Fig. 2.

Fig. 5 is an enlarged fragmentary sectional view of parts shown in Fig. 3.

Similar reference characters refer to similar parts in the different figures.

Referring to the drawings, the base 1 sup- Specification of Letters Patent,

Patented Jan. 14, 1919.

i Application filed August 2, 1915. Serial No. 43,132.

ports at one end a nest gear transmission 2, in which is journaled a horizontal shaft 3, rotatably connected to a driving motor or other prime mover, not shown. The shaft 3 is coupled to a second shaft 4, journaled in a pinion housing 5 which is also supported by base 1. The shaft 4 serves for the rotation of one of the rolls of the horizontal stand of rolls contemplated by my invention, being rotatably connected to the driv-' pinion 15 which serves, in the manner hereinafter described, for the rotation of one of the rolls of the vertical stand of rolls eontemplated by my invention; the other vertical roll is driven from a second pinion 16 journaled in the housing .14, and meshing with pinion 15.

The pinion housing 14 serves for the support of a roll housing 17 which carries both the vertical and the horizontal stands of rolls above referred to. The said roll housing, for convenience of description, may be considered as being divided, roughly, by a transverse wall 18, into two compartments, one, 19, containing the stand of vertical rolls 20, 20, and the other, 21, containing the stand of horizontal rolls 22, 22. The compartment 19 is defined by side walls 23, 23, joined together atthe top and bottom by transverse upper and lower front walls 24, 25, which have a rectangular opening 26 between them. The compartment 19 thereby presents separated upper and lower substantially inclosed recesses which are designed to contain respectively the upper and lower pairs of bearings 27, 27 and 28, 28 for the necks of the vertical rolls 20, 20.

Each pair of bearings, upper and lower, is capable of sliding movement within its recess, at right angles to the axes of rolls 20,

20, so that the distance between the axes of To this end, the opposing inner sides of each will now be described, it belng understood pair of bearings are spaced apart, as at 29, while the outer sides are formed with inclined surfaces 30, to permit the interposition of adjustable wedges 31, between the surfaces 30 and the inner surfaces of the side walls 23, 23. Said wedges are slidable through openings in the walls 24 and 25 of the housing, to move the bearings closer together, by means of screws 32, carrying locking nuts 33 for securing the wedges 1n any desired position of adjustment. Each wall 3 and 5, bushings 24, 25 also carries a screw. 34 for moving an adjustable double faced wedge 35, which coiiperates simultaneously with inclined surfaces 36,36, of the bearings, to force the bearings apart. As shown clearly in Figs. 37, 37, for the necks 38, 38, of the rolls are carried interiorly of said bearings, and are exposed on a portion of their outer surfaces to the action of said wedges 35, with the result that each wedge 35 in addition to its function in determining the distance between the axes of adjacent rolls, may be forced inwardly to deform the soft metal of the bushings and thereby take up any wear between said bushings and the necks 38, 38 of the rolls. The bushings being made of soft metal, the crowding action of the wedges 35 thereon presses said bushings against the necks 38, 38 of the rolls whenany play is present between said necks and the interlors of said bushings.

The compartment 21 of the housing 17, containing thepair of horizontal rolls 22, is

defined,rouhl,b a airofs acedu g y y p p p per end of said rod 56, projecting beyond.

right walls 39, disposed parallel to and at a distance from the partition 18. In the recesses thus formed at each side of the housing, the bearings 40, 40, and 41, 41, for the necks of rolls 22are received, said pairs of bearings being adjustable toward one another by means of screw operated wedges 42, and away from one another'by screw operated-wedges 43, the construction and operation of the adjustment devices being identicalwith that described in connection with the bearings 27 and 28 and wedges 31 and 35 of the vertical rolls.

- In the space 26 between the front walls 24, 25 of the housing is supported a fixed receiving guide 44 for the metal, said guide projecting inwardly into juxtaposition with the pass of the vertical rolls 20,20. The partition 18 supports a fixed intermediate guide 45 adapted to convey the metal from the pass of vertical rolls 20 to the pass of horizontal rolls 22. These guides are in axial alinement with each other and with a third fixed delivery guide 46, supported by a plate 47 attached to and connecting the rear walls 39 which inclose the bearings 40 and 41 of the horizontal rolls. The longitudinal or axial adjustment of the rolls, each of which has the usual series of peripheral grooves coward movement of said 1 I l operating to form passes of varlous slzes,

that the said adjustment is effective not only in bringing a pass into proper alinement with the fixed guides 44, 45 and 46, but also in rendering possible the substitution of various passes, without removal of the rolls from their bearings and without disconnecting the driving shafts of said rolls from the shafts of the driving pinions. Since the axial adjustment devices for all the rolls of the two stands of rolls are identical, a description of the same .with respect to the vertical rolls will sufiice for rolls.

The walls of housing 17 provide, adjacent the outer end of each roll bearing 27,28, 40 and 41, a plurality of notches 48. Adjusting yokes 49 and 50 disposed at opposite ends of each vertical roll, provide projecting curved ears 51 adapted for reception within said notches to afford fulcrums for each yoke. The inner face of each yoke provides raised projections 52 adapted to bear against the outer end of the adjacent bearing. The free end of each upper yoke 49 is slottedfor the passage of a fixed rod 53, carried by the housing, on the upper end of 'which a washer 54 is pressed against the yoke 49 by adjusting nuts 55. The downn'uts rocks the yoke downwardly, Fig. 2, to carry the upper bearing 27 in the same direction. Each lower yoke 50 has connected thereto'a sliding rod 56, bymeans of pins 57 which limit relative movement between rod and yoke. The upthe housing, carries adjusting nuts 57 by means of which the inward movement of the lower bearing 28 is secured. The adjusting devices of the two bearings are thus located conveniently at one end of the roll; and the inward adjustment of each bearing is made dependent upon the amount by which the adjustment device of the other bearing is loosened. The yokes 49 for the two bearings of each horizontal roll have the same adjustment devices as described above.

Referring to Fig. 2, the vertical roll 20 shown therein provides, in the present instance, four peripheral grooves 58, 59, 60 and 61, the roll being so disposed axially as to bring the groove 60 into approximate alinement with the guides 44, 45 and 46. In or- -der to secure a delicate adjustment, the

two yokes 49 and 50 are moved in or out by the adjusting nut 55 and 57'. In order to bring the groove 61 into the same position as the groove 60, the yokes 49- and 50 are elevated to bring their ears 51 into the notches 48 just above those in which they are shown as located in Fig. 2. 'In the same manner each ofthe two other grooves 58 and 59 may be rendered available by re moving the roll, with its bearings 27 and 28,

and replacing the same in a reversed posi tion. Itwill be clearly understood that each roll of both stands of rolls is longitudinally adjustable in precisely the same manner as above described, in order not only to render the different grooves of the same available to form the pass, but also to afford a delicate and accurate alinement of each groove with the guides 44, 45 and 46.

The adjustment and reversal of the rolls above described is permitted by reason of the novel driving means provided therefor, which is, in all essential respects, the same for each roll and hence it will be sufiicient to describe the same for one of the vertical rolls, shown in Fig. 2. The pinion 15, deriving its rotation from shaft 13, provides a square opening for the reception of the square end 62 of a shaft 63, which projects through the yoke 50 and enters the roll 20.

The said roll is bored out from end to end,

and then squared, so that the-square upper end 64 of shaft 63 is capable of imparting rotation thereto in all positions of adjust ment assumed by the roll. As shown in Fig. 4, the square openings in the roll and in the pinion 15 are slightly larger than the V squared ends of the shaft 63, so that sufupon the vertical rolls from passing into the pinion housing 14, each lower adjusting yoke 50 has 3. depending skirt 66, surrounding a restricted neck 67 of a water guard 68,

through which passes the shaft 63 of the roll. The water guard flares outwardly at the bottom, as shown at 69, in surrounding relation to the bearing for the upper end of pinion 15, so that the descending water is directed away from the interior of the pinion housing.

I claim,

1. In a rolling mill, the combination with a pair of reducing rolls, of bearings for said rolls, an adjustingwedge associated with each bearing for moving it transversely of the axis of its roll, and a third wedge common to the adjacent bearings of said rolls for opposing the movements transmitted by said first mentioned Wedges.

2. Ina'rolhng mill, the combination with a pair of reducing rolls, of bearings for said .rolls, an adjusting Wedge associated with each bearing for moving it in one direction transversely of the axis ,of its roll, and a third wedge common to the adjacent bearings of said rolls for moving each bearing in the opposite direction transversely of the axis of its roll.

3. In a rolling mill, the combination with a pair of reducing rolls, of bearing for the necks of said rolls, bushings interposed between said necks and said bearings, and means for adjusting said bearings, said adjusting means being in contact with said bushings whereby the operation of said adjusting means acts to deform said bushings to take up Wear between said bushings and said necks.

4. In a rolling mill, a roll having a bearing, a bushing between said roll and its bearing, and means for adjusting said bearing, said adjusting means'being in contact with said bushing whereby the operation of said adjusting means acts to deform said bushing to takeup wear between said bushing and said roll.

5. The combination with a rotatable member, of a bearing therefor, comprising a shell, a renewable bushing interposed between said member and said shell, adjusting means contacting with said shell for effecting its lateral adjustment, and means in contact with said bushing for opposing the movement transmitted to said shell by said adjusting means.

6. The combination with a rotatable member, of abearing therefor, comprising a shell,

a renewable bushing interposed between said member and said shell, adjusting means contacting with said shell for effecting its lateral adjustment, and means in contact with said bushing for opposing the movement transmitted to said shell by said adjusting means, said bushing'projecting outside of said shell, whereby the bushing is deformed to take up wear between said bushing and said rotatable member.

' 7 In a rolling mill, the combination with a stationary roll housing, of two pairs of reducing rolls supported therein, a fixed guide for the metal between said pairs of rolls, and means for longitudinally and transversely adjusting the rolls of each pair to bring the pass thereof into axial alinement with said guide.

8. In a rolling mill, the combination with a stationary roll housing, of two pairs of reducing rolls having. their axes at right angles, supportedtherein, a fixed guide for the metal between said pairs of rolls, and means for longitudinally and transversely adjusting the rolls of each pair to bring the pass thereof into axial alinement with said guide.

9. In arolling mill, the combination with a stationary roll housing, of two pairs of re-- ducing rolls supported therein, a fixed guide for the metal between said pairs of rolls,

fixed receiving and delivery guides in axial alinement with said first mentioned guide, and means for longitudinally and transversely adjusting the rolls of each pair to bring the pass thereof into axial alinement with said guides.

10. In a rolling mill, a stationary roll housing, two pairs of reducing rolls disposed therein with their axes at right angles, an intermediate fixed guide common to both pairs of rolls, and means for alining the pass of each pair of rolls axially and laterally with respect to said fixed guide.

11. In a rolling mill, a roll housing, a roll supported therein, and capable of axial adjustment in opposite directions, pivoted members operable with, respect to each end of said roll for effecting said adjustment,

and means disposed at one end of said roll for operating both of said pivoted members.

12. In a rolling mill, a roll housing, a roll supported therein and capable of axial adjustment in opposite directions, pivoted members operable with'respect to each end of said rollfor efl'ecting said adjustment, said housing providing a plurality of operating positions for each pivoted member, whereby the range of adjustment is increased.

13. In a rolling mill, a pair of rolls, each having a plurality of peripheral grooves cooperating to form reducing passes, and adjustable means adapted for the endwise retention of said rolls to obtain the alinement of selected grooves, said last named means being selectively movable into a plurality of positions to bring other grooves into approximate alinement.

14. In a rolling mill, a pair of rolls, each having a plurality of peripheral grooves cooperating to form reducing passes, and adjustable means adapted for the endwise retention of said rolls to obtain the alinement of selected grooves, said last named means being selectively movable into a plurality of positions to bring other grooves into approximate alinement, and the rolls being reversible with respect to said last named I meansito bring other grooves into approximate alinement.

15. In a rolling mill, a pair of rolls, each having a plurality ofperipheral grooves cooperating to form reducing passes, and adjustable means adapted for the endwise retention of said rolls to obtain the alinement of selected grooves, the roll ,being reversible means adapted for the endwise retention of each roll to obtain the alinement of certain of said grooves with said guide, said adustable means beingefi'ective with respect to one set of grooves in one position of said roll, and effective with respect to another set of grooves in the reversed position of said roll.

17. In-a rolling mill, a roll housing, a'roll supported therein, and a bearing for said roll neck providing a thrust surface for the end of said roll neck.

18. In a rolling mill, a roll housing, a roll supported therein, a bearing for said roll neck providing a thrust surface for the end of said roll neck, and a driving spindle for said roll received internally thereof.

Dated this 26th day of July, 1915.

VICTOR E. EDWARDS.

Witnesses:

WILLARD A. WINN, FRANK M. LORD. 

